BR112015008014A2 - sistema e método de perfuração de duplo gradiente - Google Patents

sistema e método de perfuração de duplo gradiente

Info

Publication number
BR112015008014A2
BR112015008014A2 BR112015008014A BR112015008014A BR112015008014A2 BR 112015008014 A2 BR112015008014 A2 BR 112015008014A2 BR 112015008014 A BR112015008014 A BR 112015008014A BR 112015008014 A BR112015008014 A BR 112015008014A BR 112015008014 A2 BR112015008014 A2 BR 112015008014A2
Authority
BR
Brazil
Prior art keywords
riser
coupled
drilling system
gradient drilling
auxiliary
Prior art date
Application number
BR112015008014A
Other languages
English (en)
Other versions
BR112015008014B1 (pt
Inventor
Frank B Springett
Geoffrey A Pickett
Svein Ove Aanesland
Original Assignee
Nat Oilwell Varco Lp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nat Oilwell Varco Lp filed Critical Nat Oilwell Varco Lp
Publication of BR112015008014A2 publication Critical patent/BR112015008014A2/pt
Publication of BR112015008014B1 publication Critical patent/BR112015008014B1/pt

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • E21B21/082—Dual gradient systems, i.e. using two hydrostatic gradients or drilling fluid densities
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for underwater drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/12—Underwater drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

1 / 1 resumo “sistema e mã‰todo de perfuraã‡ãƒo de duplo gradiente” um sistema de perfuraã§ã£o de duplo gradiente compreende um tubo ascendente primã¡rio, que ã© acoplado a uma sonda de perfuraã§ã£o e a uma cabeã§a de poã§o submarina, e um tubo ascendente auxiliar, que ã© acoplado ã  sonda de perfuraã§ã£o e ao tubo ascendente primã¡rio por um conduto de fluido, que ã© disposto em um ponto entre a coluna de perfuraã§ã£o e uma cabeã§a de poã§o. o conduto de fluido prov㪠comunicaã§ã£o de fluido entre o tubo ascendente primã¡rio e o tubo ascendente auxiliar. um sistema de bomba ã© disposto dentro do tubo ascendente auxiliar e fica em comunicaã§ã£o de fluido com o conduto de fluido. uma coluna de transmissã£o ã© disposta dentro do tubo ascendente auxiliar e ã© acoplada ao sistema de bomba, a fim de operavelmente acoplar o sistema de bomba ã  sonda de perfuraã§ã£o.
BR112015008014A 2012-10-15 2013-10-15 sistema e método de perfuração de duplo gradiente BR112015008014B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261713972P 2012-10-15 2012-10-15
PCT/US2013/065021 WO2014062664A2 (en) 2012-10-15 2013-10-15 Dual gradient drilling system

Publications (2)

Publication Number Publication Date
BR112015008014A2 true BR112015008014A2 (pt) 2016-03-08
BR112015008014B1 BR112015008014B1 (pt) 2016-09-27

Family

ID=49510548

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015008014A BR112015008014B1 (pt) 2012-10-15 2013-10-15 sistema e método de perfuração de duplo gradiente

Country Status (5)

Country Link
US (1) US9249637B2 (pt)
EP (1) EP2906771A2 (pt)
AU (1) AU2013331502B2 (pt)
BR (1) BR112015008014B1 (pt)
WO (1) WO2014062664A2 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016134442A1 (en) * 2015-02-26 2016-09-01 Reitsma Donald G Mud lift drilling system using ejector assembly in mud return line
WO2018031296A1 (en) * 2016-08-11 2018-02-15 Noble Drilling Services Inc. Method for assembling and disassembling marine riser and auxiliary lines and well pressure control system
CA3065187A1 (en) 2017-06-12 2018-12-20 Ameriforge Group Inc. Dual gradient drilling system and method

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US6843331B2 (en) * 2001-02-15 2005-01-18 De Boer Luc Method and apparatus for varying the density of drilling fluids in deep water oil drilling applications
US6926101B2 (en) * 2001-02-15 2005-08-09 Deboer Luc System and method for treating drilling mud in oil and gas well drilling applications
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Also Published As

Publication number Publication date
WO2014062664A2 (en) 2014-04-24
AU2013331502B2 (en) 2016-02-18
BR112015008014B1 (pt) 2016-09-27
EP2906771A2 (en) 2015-08-19
US9249637B2 (en) 2016-02-02
AU2013331502A1 (en) 2015-03-26
WO2014062664A3 (en) 2014-10-30
US20140102789A1 (en) 2014-04-17

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/10/2013, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 8A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2640 DE 10-08-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.